A note on fear reaction of three different genetic strains of laying hens to a simulated hawk attack in the hen run of a free-range system

Zeltner, Esther and Hirt, Helen
(2008)
A note on fear reaction of three different genetic strains of laying hens to a simulated hawk attack in the hen run of a free-range system.
Applied Animal Behaviour Science, Issues 1-3 (113), pp. 69-73.